Aquia II Dual Flush Toilet

TOTO's Dual-Max flushing system offers the option of a 0.9 Gallon "light flush", or a clog free 1.6 Gallon full flush. TOTO Toilets has been showing the world how to have clog free performance for decades. While other top manufacturers have been working to improve their flush performance, TOTO Toilets have been delivering.

The TOTO Aquia II toilet appeals to designers and homeowners alike with its sleek modern lines. The TOTO CST416M also offers a skirted design for easy cleaning by removing the nooks and crannies where dust and bacteria collect, while the slender tank gives it a heightened sensibility.

20 Questions from the Community

The Toto CST416M does include both the toilet tank and bowl, though you will need to choose a seat. Hope this information helps. Take care and have a great day!

CST416M does this offer include the tank and toilet?

A. The Toto CST416M does include both the toilet tank and bowl, though you will need to choose a seat. Hope this information helps. Take care and have a great day!

No, the CST416M is not comfort height. The bowl height is 15 1/4 inches.

Is this comfort height?

A. No, the CST416M is not comfort height. The bowl height is 15 1/4 inches.

The Toto CST416M is not rear outlet toilet. You can view rear outlet toilets by searching the phrase "rear outlet toilet" on our site.

Is this rear outlet? What other toto toilets are rear outleted?

A. The Toto CST416M is not rear outlet toilet. You can view rear outlet toilets by searching the phrase "rear outlet toilet" on our site.

Cotton is a pure white color, colonial white has a slight beige/yellow tint to it.

What is the difference between "cotton" and "colonial white"?

A. Cotton is a pure white color, colonial white has a slight beige/yellow tint to it.

The CT414 is the bowl only for the CST414M.

Whats the difference between the CST416M and the CT414?

A. The CT414 is the bowl only for the CST414M.

The Toto CST416M mounting screws are 5.5" apart.

Can you tell me how many inch are there in between the center of mounting bolt holes?

A. The Toto CST416M mounting screws are 5.5" apart.

The Toto CST416M requires seat SS204.

Does TOTO CST 416M come with seat? Or do I have to buy separate seat? If so, please give some recommendation.

A. The Toto CST416M requires seat SS204.

The only one piece 10" rough toilets we have from Toto are commercial grade toilets such as the Toto CT705E.

do you have toilet rough 10" one piece?

A. The only one piece 10" rough toilets we have from Toto are commercial grade toilets such as the Toto CT705E.

The Toto CST416M comes with a push button lever that is located at the top of the tank.

Do you need to buy the toilet lever separately for this toilet?

A. The Toto CST416M comes with a push button lever that is located at the top of the tank.

The Toto CST416M comes with the rough in that it needs. You will not need to purchase anything extra.

does this require a rough-in? if so, please recommend correct model.

A. The Toto CST416M comes with the rough in that it needs. You will not need to purchase anything extra.

As toto is the expert on their products and we ask they directly about compatability issues. The THU9090 is listed as the necessary adapter kit to use with the Aquia toilets and the E200 series washlets.

I want to buy a toto washlet SW844 to go with this toilet, TOTO website said I need a THD 9090 adapter kit, is that true? Can I order it here?

A. As toto is the expert on their products and we ask they directly about compatability issues. The THU9090 is listed as the necessary adapter kit to use with the Aquia toilets and the E200 series washlets.

The Toto CST416M comes in Cotton, which is a bright white.

Is the cotton color a powder/matt finish or is it polished? Is there a polished white finish for this model?

A. The Toto CST416M comes in Cotton, which is a bright white.

The Toto CST416M has a width of 14.25", a height of 30.25", an extension of 27.5" and a bowl height of 15.25".

what are the dimensions of this model?

A. The Toto CST416M has a width of 14.25", a height of 30.25", an extension of 27.5" and a bowl height of 15.25".

Comfort Height is in reference to the height of the seat. It is a taller seat making it easier to get on and off with ease.

what is comfort height?

A. Comfort Height is in reference to the height of the seat. It is a taller seat making it easier to get on and off with ease.

The CST412MF is a low consumption model.

What is the main difference between CST416M and CST412MF. Why CST 412MF more expensive?

A. The CST412MF is a low consumption model.

The difference between the Toto CST416M and the Toto CST412MF is that the CST412MF is ADA-compliant, and has the seat at 16-1/8" above the floor.

What is the main difference between CST416M and CST412MF? its not specifically stated below.

A. The difference between the Toto CST416M and the Toto CST412MF is that the CST412MF is ADA-compliant, and has the seat at 16-1/8" above the floor.

The Toto CST416M does include the mounting hardware.

Is the mouting adapter included?

A. The Toto CST416M does include the mounting hardware.

The Toto CST416M includes the 12" rough-in.

does this toilet include the 12" rough-in?

A. The Toto CST416M includes the 12" rough-in.

The CST416M will work with the SS114, which is soft close, or the SS204.

What are the options for a seat?

A.

The CST416M will work with the SS114, which is soft close, or the SS204.

The push button is not available in a bronze finish.

Is bronze hardware available instead of chrome?

A.

The push button is not available in a bronze finish.

Product Reviews

Rated 5 out of
5 by
rockdoc from
Lean and GreenThe Aquia II is a compact toilet compared to the Kohler Wellworth it replaced. It is considerably shorter forward of the flange than most toilets. Mounting is rather high-tech and does not bolt directly to the flange. Rather, a mounting adapter with a rubber gasket bolts to the flange with the wax ring between it and the flange. The value here is that if the toilet has to be removed after installation you will not have to replace the wax ring ? no scraping ore yucky cleanup before replacement. Four holes must be drilled with the use of the included template at the rear to secure the two nylon mounting blocks (this may a bit of work if you have a ceramic tile floor). Once the mounting blocks are affixed to the floor the toilet can be placed and two fastening screws (with dress center taps) can be set completing the process. A word to the wise ? the Aquia requires you to work trough small ports at the back of the lower piece to affix the seat and worm the supply line (you will likely need a longer line than you now have) coming from the tank. This is best done BEFORE the toilet is put in place.
As far as the operation of the toilet everything works beautifully. At the top of the tank is a split button for flushing. The left portion is designed for liquid waste, the right for #2. If you are interested in ?greenness? this is the perfect toilet. Since liquid flushes far out number solid waste flushes the total amount of water used with this toilet should be considerably less that that utilized by a 1.26 G/F toilet. At the same time the Aquia does not reduce the total water/solids ratio in the line that can lead to sewer line problems in the future.

Date published: 2009-08-31

Rated 5 out of
5 by
MLHer from
Nice look great valueWe bought this toilet for our powder room remodel last year and liked it so much we bought the same model for our master bathroom remodel. The toilet is sleek, taking up much less floor space than the original fixture, with a contemporary but still traditional look. It is easy to keep clean and the dual flush system truly does save water - and ultimately money. The recommended "soft close" lid isn't necessary but is nice to have if you want to spend the extra money.

Date published: 2011-03-23

Rated 3 out of
5 by
StillATotoFan from
Mostly ThrilledPRO: style, ease of cleaning, flush power, water-saving
CON: noisy peeing, skid marks, and LOUD flush (husband and I have have a rule: NO FLUSH at night)
(We still would recommend TOTO. Every time we move, we replace toilets with TOTO. Nothing is better. The Drake doesn't have the same LOUD factor....but I LOVE the clean-ability of this toilet...)

Date published: 2013-11-02

Rated 1 out of
5 by
Bhoog74 from
Dual flush is horribleI bought three of these in march of 13, after having a plumber install them, they worked for 3 months now 2 of the three toilets run non-stop. I have been trying to work with toto, but so far their recommendations have been to clean the internal cylinder, which I have done 6x and nothing ever changes. Skip this toilet if you have a choice.

Date published: 2014-01-05

Rated 5 out of
5 by
smurfcat from
the best!best in function, best in looks--exceeds our expectations

Date published: 2010-06-19

Rated 3 out of
5 by
marvelita from
Nice look but.....The jury's still out on this one. Nice blend of modern and traditional looks and enjoy the dual push-button flush. However, toilet is leaking slowly at the base. Don't know if installation was tricky or just was not set properly. Waiting for plumber to return.

Date published: 2014-12-05

Rated 3 out of
5 by
Jimbo48236 from
Great look but I have a warning for youI bought this Toto toilet about 4 years ago and installed it in my powder room. The toilet works great, cleaning all the waste BUT since there is little water area, "stuff" sticks to the bowl and never (I mean never) comes off without taking the toilet brush to the "stuff". We don't do #2 in this toilet because of "stuff" sticking...you've been warned!

Date published: 2015-01-20

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Toto

Toto’s nearly 100 years of experience has ensured a household name for toilets and plumbing fixtures internationally. Based out of Japan, Toto established itself as a leader in toilets and sinks for all price ranges. Looking for a modern plumbing and clog free toilets, you will surely rave about the high-end design from Toto.

Toto Aquia Collection

The Aquia Collection by Toto is home to the number one selling toilet sold by Toto, and possibly one of the most popular and highest quality toilets in the world. This Collection offers the Aquia Dual Flush toilet (Model Number CST412M and CST412MF). This toilet is not only beautiful, but is reasonably priced, dual flush to save on your water bill and one of the most highly rated best performing toilets on the market. You can't go wrong with a Toto toilet, but getting an Aquia toilet by Toto is one of the best options available, period.

Warranty Info

Warranty Info

One Year Limited Warranty

1. TOTO warrants its products to be free from manufacturing defects under normal use and service for a period of one (1) year from date of purchase. This warranty is extended only to the ORIGINAL PURCHASER.

2. TOTO's obligations under this warranty are limited to repair or replacement, at TOTO's option, of products or parts found to be defective, provided that such products were properly installed and used in accordance with instructions. TOTO reserves the right to make such inspections as may be necessary in order to determine the cause of the defect. TOTO will not charge for labor or parts in connection with warranty repairs or replacements. TOTO is not responsible for the cost of removal, return and/or reinstallation of products.

b. Damage or loss resulting from any unreasonable use, misuse, abuse, negligence, or improper maintenance of the product.

c. Damage or loss resulting from removal, improper repair, or modification of the product.

d. Damage or loss resulting from sediments or foreign matter contained in a water system.

e. Damage or loss resulting from improper installation or from installation of a unit in a harsh and/or hazardous environment.

4. This warranty gives you specific legal rights. You may have other rights which vary from state to state.

5. To obtain warranty repair service under this warranty, you must take the product or deliver it prepaid to a TOTO service facility together with a letter stating the problem, or contact a TOTO distributor or products service contractor, or write directly to TOTO U.S.A., INC., 1155 Southern Road, Morrow, GA 30260 (770) 282-8686. If, because of the size of the product or nature of the defect, the product cannot be returned to TOTO, receipt by TOTO of written notice of the defect shall constitute delivery. In such case, TOTO may choose to repair the product at the purchaser's location or to pay to transport the product to a service facility.

This written warranty is the only warranty made by TOTO. Repair or replacement as provided under this warranty shall be the exclusive remedy available to the purchaser. TOTO shall not be responsible for loss of the product or for other incidental, special or consequential damages or expenses incurred by the purchaser, or for labor or other costs due to installation or removal, or costs of repairs by others, or for any other expense not specifically stated above. Except to the extent prohibited by applicable law, any implied warranties, including that of merchantability or fitness for use, are expressly limited to the duration of this warranty. Some states do not allow limitations on how long an implied warranty lasts, or the exclusion or limitation of incidental or consequential damages, so the above limitation and exclusion may not apply to you.

Warning! TOTO shall not be responsible or liable for any failure of, or damage to, this plumbing product or product component caused by either chloramines in the treatment of public water supply or in-tank bowl cleaners containing chlorine (calcium hypochlorite).

Note: The use of high concentration of chlorine or chlorine related products can seriously damage the fittings. This damage can cause leakage and serious property damage.

For more information, please call us at (770) 282-8686.

Three Year Limited Warranty

Warranty applies to select Electronic Flush Valves and Faucets only.

1. TOTO U.S.A., INC. (“TOTO”) warrants its electronic flush valves and faucets (“Product”), to be free from defects in materials and workmanship during normal use when properly installed and serviced, for a period of three (3) years from date of purchase. This limited warranty is extended only to the original purchaser of the Product and is not transferable to any third party, including but not limited to any subsequent purchaser or owner of the Product. This warranty applies only to TOTO Products purchased and installed in United States, Canada and Mexico.

2. TOTO’s obligations under this warranty are limited to repair, replacement or other appropriate adjustment, at TOTO’s option, of the Product or parts found to be defective in normal use, provided that such Product was properly installed, used and serviced in accordance with instructions. TOTO reserves the right to make such inspections as may be necessary in order to determine the cause of the defect. TOTO will not charge for labor or parts in connection with warranty repairs or eplacements. TOTO is not responsible for the cost of removal, return and/or reinstallation of the Product.

3. This warranty does not apply to the following items: a. Damage or loss sustained in a natural calamity such as fire, earthquake, flood, thunder, electrical storm, etc.

b. Damage or loss resulting from any accident, unreasonable use, misuse, abuse, negligence, or improper care or maintenance of the Product.

c. Damage or loss resulting from sediments or foreign matter contained in a water system.

d. Damage or loss resulting from improper installation or from installation of the Product in a harsh and/or hazardous environment, or improper removal, repair or modification of the Product.

e. Damage or loss resulting from electrical surges or lightning strikes or other acts which are not the fault of TOTO or which the Product is not specified to tolerate.

4. To obtain warranty repair service under this warranty, you must take the Product or deliver it prepaid to a TOTO service facility together with proof of purchase (original sales receipt) and a letter stating the problem, or contact a TOTO distributor or products service contractor, or write directly to TOTO U.S.A., INC., 1155 Southern Road, Morrow, GA 30260 (770) 282-8686. If, because of the size of the Product or nature of the defect, the Product cannot be returned to TOTO, receipt by TOTO of written notice of the defect together with proof of purchase (original sales receipt) shall constitute delivery. In such case, TOTO may choose to repair the Product at the purchaser’s location or pay to transport the Product to a service facility.

THIS WRITTEN WARRANTY IS THE ONLY WARRANTY MADE BY TOTO. REPAIR, REPLACEMENT OR OTHER APPROPRIATE ADJUSTMENT AS PROVIDED UNDER THIS WARRANTY SHALL BE THE EXCLUSIVE REMEDY AVAILABLE TO THE ORIGINAL PURCHASER. TOTO SHALL NOT BE RESPONSIBLE FOR LOSS OF THE PRODUCT OR FOR OTHER INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES OR EXPENSES INCURRED BY THE ORIGINAL PURCHASER, OR FOR LABOR OR OTHER COSTS DUE TO INSTALLATION OR REMOVAL, OR COSTS OF REPAIRS BY OTHERS, OR FOR ANY OTHER EXPENSE NOT SPECIFICALLY STATED ABOVE. IN NO EVENT WILL TOTO’S RESPONSIBILITY EXCEED THE PURCHASE PRICE OF THE PRODUCT. EXCEPT TO THE EXTENT PROHIBITED BY APPLICABLE LAW, ANY IMPLIED WARRANTIES, INCLUDING THAT OF MERCHANTABILITY OR FITNESS FOR USE OR FOR A PARTICULAR PURPOSE, ARE EXPRESSLY DISCLAIMED.

Five Year Limited Warranty

Warranty applies to select Augusta Products only.

1. TOTO warrants its vitreous china products to be free from manufacturing defects under normal use and service for a period of five (5) years from date of purchase. This warranty is extended only to the ORIGINAL PURCHASER.

2. TOTO's obligations under this warranty are limited to repair or replacement, at TOTO's option, of products or parts found to be defective, provided that such products were properly installed and used in accordance with instructions. TOTO reserves the right to make such inspections as may be necessary in order to determine the cause of the defect. TOTO will not charge for labor or parts in connection with warranty repairs or replacements. TOTO is not responsible for the cost of removal, return and/or reinstallation of products.

b. Damage or loss resulting from any unreasonable use, misuse, abuse, negligence, or improper maintenance of the product.

c. Damage or loss resulting from removal, improper repair, or modification of the product.

d. Damage or loss resulting from sediments or foreign matter contained in a water system.

e. Damage or loss resulting from improper installation or from installation of a unit in a harsh and/or hazardous environment.

f. Tank flushing mechanisms of plastic or rubber moving parts.

g. Toilet seats of plastic, wood or metal.

4. This warranty gives you specific legal rights. You may have other rights which vary from state to state.

5. To obtain warranty repair service under this warranty, you must take the product or deliver it prepaid to a TOTO service facility together with a letter stating the problem, or contact a TOTO distributor or products service contractor, or write directly to TOTO U.S.A., INC., 1155 Southern Road, Morrow, GA 30260 (770) 282-8686. If, because of the size of the product or nature of the defect, the product cannot be returned to TOTO, receipt by TOTO of written notice of the defect shall constitute delivery. In such case, TOTO may choose to repair the product at the purchaser’s location or to pay to transport the product to a service facility.

This written warranty is the only warranty made by TOTO. Repair or replacement as provided under this warranty shall be the exclusive remedy available to the purchaser. TOTO shall not be responsible for loss of the product or for other incidental, special or consequential damages or expenses incurred by the purchaser, or for labor or other costs due to installation or removal, or costs of repairs by others, or for any other expense not specifically stated above. Except to the extent prohibited by applicable law, any implied warranties, including that of merchantability or fitness for use, are expressly limited to the duration of this warranty. Some states do not allow limitations on how long an implied warranty lasts, or the exclusion or limitation of incidental or consequential damages, so the above limitation and exclusion may not apply to you.

Warning! TOTO shall not be responsible or liable for any failure of, or damage to, this plumbing product or product component caused by either chloramines in the treatment of public water supply or in-tank bowl cleaners containing chlorine (calcium hypochlorite).

Note: The use of high concentration of chlorine or chlorine related products can seriously damage the fittings. This damage can cause leakage and serious property damage.

For more information, please call us at (770) 282-8686.

Limited Lifetime Warranty

Warranty applies to select Cast Iron Products only.

1. TOTO U.S.A., INC. warrants its cast iron products, excluding accessories, to be free from defects in materials and workmanship during normal residential use for the lifetime of the Product, extending from the date of purchase of the Product by the original consumer end-user purchaser. This limited lifetime warranty is extended only to the original consumer end-user purchaser and only so long as the Product remains in use by the original consumer end-user purchaser in its original place of installation in the purchaser’s residence. This warranty applies only to TOTO Products purchased and installed in North America.

2. TOTO’s obligations under this warranty are limited to repair, replacement or other appropriate adjustment, at TOTO’s option, of the Product or parts found to be defective in normal residential use, provided that such Product was properly installed and used in accordance with instructions. TOTO reserves the right to make such inspections as may be necessary in order to determine the cause of the defect. TOTO will not charge for labor or parts in connection with warranty repairs or replacements. TOTO is not responsible for the cost of removal, return and/or reinstallation of the Product.

b. Damage or loss resulting from any accident, unreasonable use, misuse, abuse, negligence, or improper care, cleaning or maintenance of the Product.

c. Damage or loss resulting from sediments or foreign matter contained in a water system.

d. Damage or loss resulting from improper installation or from installation of the Product in a harsh and/or hazardous environment, or improper removal, repair or modification of the Product.

e. Damage or loss resulting from normal and customary wear and tear, such as gloss reduction, scratching, staining or fading over time due to use, cleaning practices or water or atmospheric conditions.

4. If the Product is used commercially or is installed outside of North America, TOTO warrants the Product to be free from defects in materials and workmanship during normal use for one (1) year from the date of installation of the Product, and all other terms of this warranty shall be applicable except the duration of the warranty.

5. THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS. YOU MAY HAVE OTHER RIGHTS WHICH VARY FROM STATE TO STATE OR PROVINCE TO PROVINCE.

6. To obtain warranty repair service under this warranty, you must take the Product or deliver it prepaid to a TOTO service facility together with proof of purchase (original sales receipt) and a letter stating the problem, or contact a TOTO distributor or products service contractor, or write directly to TOTO U.S.A., INC., 1155 Southern Road, Morrow, GA 30260 (770) 282-8686. If, because of the size of the Product or nature of the defect, the Product cannot be returned to TOTO, receipt by TOTO of written notice of the defect together with proof of purchase (original sales receipt) shall constitute delivery. In such case, TOTO may choose to repair the Product at the purchaser’s location or pay to transport the Product to a service facility.

THIS WRITTEN WARRANTY IS THE ONLY WARRANTY MADE BY TOTO. REPAIR, REPLACEMENT OR OTHER APPROPRIATE ADJUSTMENT AS PROVIDED UNDER THIS WARRANTY SHALL BE THE EXCLUSIVE REMEDY AVAILABLE TO THE ORIGINAL PURCHASER. TOTO SHALL NOT BE RESPONSIBLE FOR LOSS OF THE PRODUCT OR FOR OTHER INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES OR EXPENSES INCURRED BY THE ORIGINAL PURCHASER, OR FOR LABOR OR OTHER COSTS DUE TO INSTALLATION OR REMOVAL, OR COSTS OF REPAIRS BY OTHERS, OR FOR ANY OTHER EXPENSE NOT SPECIFICALLY STATED. IN NO EVENT WILL TOTO’S RESPONSIBILITY EXCEED THE PURCHASE PRICE OF THE PRODUCT. EXCEPT TO THE EXTENT PROHIBITED BY APPLICABLE LAW, ANY IMPLIED WARRANTIES, INCLUDING THAT OF MERCHANTABILITY OR FITNESS FOR USE OR FOR A PARTICULAR PURPOSE, ARE EXPRESSLY LIMITED TO THE DURATION OF THIS WARRANTY. Some states and provinces do not allow limitations on how long an implied warranty lasts, or the exclusion or limitation of incidental or consequential damages, so the above limitation and exclusion may not apply to you.